Customcaddy - media basket customize your mechanical, chemical, and biological filter media or convert to a living refugium with our larger and more robust customcaddy media baskets. Choose between your favorite filter Pads, activated carbon, ion exchange resins, or synthetic polymers to target specific toxins and pollutants. All customcaddy media baskets are designed to fit all Nuvo aquariums to boost filtration and extract a wide range of impurities for a cleaner and clearer aquarium. Features (4) laser cut slots and (2) slide out acrylic shelves to accommodate the media of your choice. Convenient sliding door grants quick access for ultra-fast media changes and makes maintenance a breeze. Features: fits all Nuvo aquariums customcaddy Fusion 20 - fits Nuvo Fusion nano 10 & Fusion nano 20 customcaddy 16 - fits Nuvo 4, 8, & 16 customcaddy 24 - fits Nuvo 24 customcaddy 38 - fits Nuvo 30 & 38 customcaddy Fusion 40 - fits Nuvo Fusion 30L & 40 customcaddy sr-120 - fits sr-series sr-60, sr-80 & sr-120 made from quality cell cast acrylic clear acrylic - front and back panel black acrylic - side panels & curved handle (7401, 7402 & 7403) perfect for natural filtration easily converts to a refugium by removing shelves pair with our magnafuge LED for a total experience designed to fit all media types and sizes quick maintenance just add your favorite media item # 7400 nuvos: Fusion nano 10 & Fusion nano 20.